MHT CET · Chemistry · Haloalkanes and Haloarenes
Which among the following is NOT a feature of \(\mathrm{S}_{\mathrm{N}} 2\) mechanism?
- A Single step mechanism.
- B Backside attack of nucleophile.
- C Formation of planar carbocation intermediate.
- D Involves simultaneous bond breaking and bond forming.
Answer & Solution
Correct Answer
(C) Formation of planar carbocation intermediate.
Step-by-step Solution
Detailed explanation
The \(S_N 2\) mechanism proceeds through a transition state where the nucleophile and the leaving group are both partially bonded to the central carbon atom. A carbocation intermediate is not formed; this is a characteristic of the \(S_N 1\) mechanism.
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